EP 1811249 A1 20070725 - Method and apparatus for controlling the removal of heat from the condenser in a refrigeration system
Title (en)
Method and apparatus for controlling the removal of heat from the condenser in a refrigeration system
Title (de)
Verfahren und Vorrichtung zur Steuerung der Wärmeabfuhr aus einem Kondensator in einem Kühlsystem
Title (fr)
Procede et dispositif d`evacuation de la chaleur du condenseur d`un systeme de refrigeration
Publication
Application
Priority
- EP 02739132 A 20020405
- US 83819601 A 20010420
Abstract (en)
This invention increases efficiency of a refrigeration system (10) by maximizing the cooling of the condenser (14) and reducing unnecessary work done by the compressor (12). In air cooled systems it will also increase the stability of the fans (16) by reducing fan cycling. The fan controller (24) will utilize an algorithm that will consider the following inputs: oil pressure, compressor suction pressure, expansion valve position, compressor loading, last compressor loading change, and current fan stage. The algorithm uses fuzzy logic to characterize the inputs and generates an output that controls the system cooling fans (16).
IPC 8 full level
F25B 1/00 (2006.01); F25B 49/02 (2006.01); F25B 41/06 (2006.01)
CPC (source: EP US)
F25B 41/34 (2021.01 - EP US); F25B 49/022 (2013.01 - EP US); F25B 49/027 (2013.01 - EP US); F25B 2600/111 (2013.01 - EP US); F25B 2600/2513 (2013.01 - EP US); F25B 2700/1931 (2013.01 - EP US); F25B 2700/1932 (2013.01 - EP US); F25B 2700/1933 (2013.01 - EP US); F25B 2700/21151 (2013.01 - EP US); F25B 2700/21152 (2013.01 - EP US); Y02B 30/70 (2013.01 - EP US)
Citation (search report)
- [XY] EP 0355180 A2 19900228 - NIPPON TELEGRAPH & TELEPHONE [JP]
- [Y] US 5138844 A 19920818 - CLANIN THOMAS J [US], et al
- [Y] US 5522231 A 19960604 - KENYON RICHARD L [US], et al
- [Y] US 5067326 A 19911126 - ALSENZ RICHARD H [US]
- [A] US 5058390 A 19911022 - SINDERMANN FREDERICK L [US], et al
- [A] US 6161394 A 20001219 - ALSENZ RICHARD H [US]
- [A] EP 1072847 A2 20010131 - JOHNSON CONTROLS TECH CO [US]
- [A] US 5255529 A 19931026 - POWELL JAMES W [US], et al
- [A] WO 9806987 A1 19980219 - HISLOP RODERICK ALAN [AU]
- [A] US 6041605 A 20000328 - HEINRICHS ANTON D [US]
- [A] EP 0152608 A2 19850828 - LINDE AG [DE]
- [A] US 3390539 A 19680702 - MINER ROBERT G
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 02086396 A1 20021031; CA 2436217 A1 20021031; CA 2436217 C 20061205; CN 1267690 C 20060802; CN 1463352 A 20031224; DE 60231033 D1 20090319; DE 60237245 D1 20100916; EP 1379817 A1 20040114; EP 1379817 B1 20090128; EP 1811249 A1 20070725; EP 1811249 B1 20100804; JP 2004522132 A 20040722; JP 2007303818 A 20071122; MX PA03009646 A 20040129; TW 538226 B 20030621; US 2003014986 A1 20030123; US 6530236 B2 20030311
DOCDB simple family (application)
US 0210913 W 20020405; CA 2436217 A 20020405; CN 02801784 A 20020405; DE 60231033 T 20020405; DE 60237245 T 20020405; EP 02739132 A 20020405; EP 07009497 A 20020405; JP 2002583884 A 20020405; JP 2007219358 A 20070827; MX PA03009646 A 20020405; TW 91107891 A 20020417; US 83819601 A 20010420